Biphasic effects of progesterone on sexual receptivity in the female guinea pig.
D000818:Animals; D004958:Estradiol / Q000494:pharmacology; D004971:Estrus; D005260:Female; D006168:Guinea Pigs; D008141:Lordosis; D008598:Menstruation; D010053:Ovary / Q000502:physiology; D011247:Pregnancy; D011374:Progesterone / Q000494:pharmacology*; D012726:Sexual Behavior, Animal / Q000187:drug effects*
D011374:Progesterone; D004958:Estradiol